Infiniti Q45. Manual — part 251
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
BR-5
C
D
E
G
H
I
J
K
L
M
A
B
BR
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PFP:00003
NVH Troubleshooting Chart
NFS000B7
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
X: Applicable
Reference page
—
—
—
—
—
—
N
V
H in
PR s
e
c
ti
o
n
N
V
H in
RFD s
e
c
ti
o
n
N
V
H in
F
AX, RAX
a
n
d
FS
U
,
RSU s
e
c
ti
o
n
N
V
H
in
W
T
s
e
c
tio
n
N
V
H
in
W
T
s
e
c
tio
n
N
V
H in
RAX s
e
c
ti
o
n
N
V
H in
PS s
e
c
tio
n
Possible cause and
SUSPECTED PARTS
Pad
s
-
dam
age
d
Pad
s
-
unev
en w
ear
Shi
m
s dam
ag
ed
R
o
to
r i
m
bal
anc
e
Ro
to
r d
a
ma
g
e
R
o
to
r r
un
out
Ro
to
r d
e
fo
rm
a
ti
o
n
R
o
to
r d
e
fl
e
c
ti
o
n
Ro
to
r ru
s
t
R
o
to
r t
h
ickn
ess
va
ri
at
io
n
D
rum
ou
t
of
r
oun
d
PROPELL
E
R SHAF
T
DIFFERENTIAL
AXL
E AND
SUSPENSION
TIRES
ROAD W
H
EEL
D
R
IV
E
SH
AF
T
STEERING
Symptom
BRAKE
Noise
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
Shimmy, Judder
×
×
×
×
×
×
×
×
×
×
×
BR-6
BRAKE PEDAL
BRAKE PEDAL
PFP:46501
Inspection and Adjustment
NFS000B8
PLAY AND CLEARANCE BETWEEN BRAKE PEDAL AND FLOOR PANEL WITH PEDAL
DEPRESSED
●
Check brake pedal play.
●
Check brake pedal free height from dash lower panel.
●
Adjust height referring to following specifications.
SFIA2427E
H
Brake pedal height (from dash lower panel top surface)
192.4 – 202.4 mm (7.57 –7.97 in)
D
Depressed pedal height [under a force of 490 N (50 kg,
110 lb) with engine running]
90 mm (3.54 in) or more
C
Clearance between stopper rubber and threaded end of
stop lamp switch and ASCD cancel switch.
0.74 – 1.96 mm (0.0291 – 0.0772 in)
A
Pedal play
3 – 11 mm (0.12 – 0.43 in)
BRAKE PEDAL
BR-7
C
D
E
G
H
I
J
K
L
M
A
B
BR
ADJUSTMENT
1.
Loosen stop lamp switch and ASCD cancel switch by rotating it
counterclockwise by 45
°
.
2.
Loosen lock nut (A) on input rod to rotate input rod for adjusting
brake pedal height to the specified one, and tighten lock nut (A).
Refer to
CAUTION:
Make sure the threaded end of input rod stays inside clevis.
3.
With the pedal pulled and held by hand, press stop lamp switch
and ASCD cancel switch until its threaded end contacts stopper
rubber.
4.
With the threaded end of stop lamp switch and ASCD cancel
switch contacting the bracket, rotate switch clockwise by 45
°
to
secure.
CAUTION:
Make sure that clearance (C) between stopper rubber and
end of stop lamp switch and ASCD cancel switch is within
the standard.
5.
BR-6, "Inspection and Adjustment"
CAUTION:
Make sure that stop lamps go off when pedal is released.
6.
Start the engine to check brake pedal depression height when
depressed. Refer to
BR-6, "Inspection and Adjustment"
.
Components
NFS000HY
SFIA0160E
1.
Clevis pin
2.
Brake pedal stroke sensor
3.
Snap pin
4.
ASCD cancel switch
5.
Stop lamp switch
6.
Clip
7.
Stopper rubber
8.
Brake pedal assembly
9.
Brake pedal pad
SFIA2469E
BR-8
BRAKE PEDAL
Removal and Installation
NFS000B9
REMOVAL
1.
Remove instrument lower driver panel. Refer to
Instrument Lower Driver Panel"
2.
Remove steering column. Refer to
3.
Remove stop lamp switch and ASCD cancel switch from brake
pedal assembly.
4.
Disconnect the brake pedal stroke sensor connector.
CAUTION:
Brake pedal stroke sensor is not detachable. Do not detach
it.
5.
Remove snap pin and clevis pin from brake booster clevis.
6.
Remove mounting nuts and bolt from bracket, and remove brake pedal assembly from vehicle.
INSPECTION AFTER REMOVAL
●
Check brake pedal upper rivet for deformation.
●
Make sure that the lapping length of sub-bracket and slide plate
is at least 5 mm (0.20 in).
●
Check brake pedal for bend, damage, and cracks on the welded
parts.
●
Replace brake pedal assembly if any non-standard condition is
detected.
●
Check clevis pin and plastic stopper for damage and deforma-
tion. Replace clevis pin if there are.
INSTALLATION
Paying attention to the following, install in the reverse order of the removal.
Tighten the mounting nuts and bolt to the specified torque. Refer to
.
●
After installing brake pedal assembly to vehicle, adjust brake pedal. Refer to
SFIA0159E
SFIA2289E
SBR997
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст